./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 ......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:25:09,587 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:25:09,588 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:25:09,596 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:25:09,596 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:25:09,597 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:25:09,597 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:25:09,598 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:25:09,600 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:25:09,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:25:09,601 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:25:09,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:25:09,602 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:25:09,602 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:25:09,603 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:25:09,603 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:25:09,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:25:09,605 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:25:09,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:25:09,606 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:25:09,607 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:25:09,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:25:09,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:25:09,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:25:09,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:25:09,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:25:09,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:25:09,611 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:25:09,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:25:09,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:25:09,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:25:09,613 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:25:09,613 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:25:09,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:25:09,614 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:25:09,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:25:09,615 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:25:09,623 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:25:09,623 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:25:09,623 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:25:09,624 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:25:09,624 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:25:09,624 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:25:09,624 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:25:09,624 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:25:09,625 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:25:09,626 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:25:09,626 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:25:09,626 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:25:09,626 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:25:09,626 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:25:09,626 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:25:09,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:25:09,627 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:25:09,627 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:25:09,627 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:25:09,627 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:25:09,627 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:25:09,627 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:25:09,627 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 [2018-11-10 07:25:09,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:25:09,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:25:09,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:25:09,663 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:25:09,664 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:25:09,664 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-11-10 07:25:09,708 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/data/d8f30bccb/4b9e4e39606b44228596ade5f3cb98c7/FLAG3e74a7a43 [2018-11-10 07:25:09,996 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:25:09,996 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-11-10 07:25:10,000 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/data/d8f30bccb/4b9e4e39606b44228596ade5f3cb98c7/FLAG3e74a7a43 [2018-11-10 07:25:10,008 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/data/d8f30bccb/4b9e4e39606b44228596ade5f3cb98c7 [2018-11-10 07:25:10,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:25:10,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:25:10,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:25:10,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:25:10,015 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:25:10,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10, skipping insertion in model container [2018-11-10 07:25:10,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:25:10,036 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:25:10,121 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:25:10,123 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:25:10,131 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:25:10,139 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:25:10,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10 WrapperNode [2018-11-10 07:25:10,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:25:10,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:25:10,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:25:10,140 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:25:10,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... [2018-11-10 07:25:10,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:25:10,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:25:10,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:25:10,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:25:10,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:25:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:25:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:25:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:25:10,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:25:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:25:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 07:25:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:25:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 07:25:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:25:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:25:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:25:10,324 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:25:10,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:25:10 BoogieIcfgContainer [2018-11-10 07:25:10,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:25:10,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:25:10,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:25:10,327 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:25:10,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:25:10" (1/3) ... [2018-11-10 07:25:10,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c99cccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:25:10, skipping insertion in model container [2018-11-10 07:25:10,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:25:10" (2/3) ... [2018-11-10 07:25:10,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c99cccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:25:10, skipping insertion in model container [2018-11-10 07:25:10,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:25:10" (3/3) ... [2018-11-10 07:25:10,330 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant_true-unreach-call_true-termination.i [2018-11-10 07:25:10,336 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:25:10,341 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:25:10,354 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:25:10,373 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:25:10,374 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:25:10,374 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:25:10,374 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:25:10,374 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:25:10,374 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:25:10,375 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:25:10,375 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:25:10,375 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:25:10,389 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-10 07:25:10,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 07:25:10,394 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:25:10,395 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:25:10,397 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:25:10,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:25:10,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1350619, now seen corresponding path program 1 times [2018-11-10 07:25:10,403 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:25:10,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:25:10,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:25:10,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:25:10,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:25:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:25:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:25:10,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:25:10,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 07:25:10,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 07:25:10,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 07:25:10,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:25:10,536 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2018-11-10 07:25:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:25:10,593 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2018-11-10 07:25:10,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:25:10,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-10 07:25:10,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:25:10,599 INFO L225 Difference]: With dead ends: 43 [2018-11-10 07:25:10,599 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 07:25:10,601 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:25:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 07:25:10,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-10 07:25:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-10 07:25:10,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-10 07:25:10,629 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2018-11-10 07:25:10,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:25:10,629 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-10 07:25:10,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 07:25:10,629 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-10 07:25:10,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 07:25:10,630 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:25:10,630 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:25:10,630 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:25:10,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:25:10,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1691970717, now seen corresponding path program 1 times [2018-11-10 07:25:10,630 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:25:10,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:25:10,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:25:10,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:25:10,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:25:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:25:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:25:10,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:25:10,705 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:25:10,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:25:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:25:10,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:25:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:25:10,801 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:25:10,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2018-11-10 07:25:10,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 07:25:10,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 07:25:10,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:25:10,803 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2018-11-10 07:25:10,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:25:10,881 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-11-10 07:25:10,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 07:25:10,881 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-10 07:25:10,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:25:10,882 INFO L225 Difference]: With dead ends: 33 [2018-11-10 07:25:10,882 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 07:25:10,883 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-10 07:25:10,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 07:25:10,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-11-10 07:25:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-10 07:25:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-11-10 07:25:10,888 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 19 [2018-11-10 07:25:10,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:25:10,888 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-11-10 07:25:10,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 07:25:10,888 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-11-10 07:25:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 07:25:10,889 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:25:10,889 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:25:10,889 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:25:10,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:25:10,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1146463393, now seen corresponding path program 2 times [2018-11-10 07:25:10,890 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:25:10,890 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:25:10,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:25:10,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:25:10,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:25:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:25:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 07:25:10,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:25:10,991 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:25:11,003 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 07:25:11,011 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:25:11,011 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:25:11,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:25:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 07:25:11,074 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:25:11,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2018-11-10 07:25:11,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-10 07:25:11,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-10 07:25:11,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-11-10 07:25:11,075 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 13 states. [2018-11-10 07:25:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:25:11,131 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-11-10 07:25:11,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 07:25:11,132 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2018-11-10 07:25:11,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:25:11,132 INFO L225 Difference]: With dead ends: 37 [2018-11-10 07:25:11,132 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:25:11,132 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-11-10 07:25:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:25:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:25:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:25:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:25:11,133 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-10 07:25:11,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:25:11,133 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:25:11,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-10 07:25:11,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:25:11,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:25:11,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:25:11,182 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 07:25:11,182 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:25:11,182 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:25:11,182 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:25:11,182 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:25:11,182 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:25:11,182 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 16) the Hoare annotation is: true [2018-11-10 07:25:11,182 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 16) no Hoare annotation was computed. [2018-11-10 07:25:11,182 INFO L421 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (<= main_~i~0 999999) [2018-11-10 07:25:11,182 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 16) no Hoare annotation was computed. [2018-11-10 07:25:11,182 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 12 14) no Hoare annotation was computed. [2018-11-10 07:25:11,183 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2018-11-10 07:25:11,183 INFO L421 ceAbstractionStarter]: At program point L12-3(lines 12 14) the Hoare annotation is: (<= main_~i~0 1000000) [2018-11-10 07:25:11,183 INFO L425 ceAbstractionStarter]: For program point L12-4(lines 12 14) no Hoare annotation was computed. [2018-11-10 07:25:11,183 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-10 07:25:11,183 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-10 07:25:11,183 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-10 07:25:11,183 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-10 07:25:11,183 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-10 07:25:11,183 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-10 07:25:11,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:25:11 BoogieIcfgContainer [2018-11-10 07:25:11,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:25:11,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:25:11,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:25:11,193 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:25:11,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:25:10" (3/4) ... [2018-11-10 07:25:11,196 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:25:11,201 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:25:11,201 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:25:11,201 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 07:25:11,204 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 07:25:11,204 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 07:25:11,204 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:25:11,229 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7031aea0-5ebe-42e1-bbc4-13dd63b76beb/bin-2019/uautomizer/witness.graphml [2018-11-10 07:25:11,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:25:11,230 INFO L168 Benchmark]: Toolchain (without parser) took 1220.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 958.2 MB in the beginning and 1.0 GB in the end (delta: -59.5 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:25:11,231 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:25:11,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.07 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:25:11,231 INFO L168 Benchmark]: Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:25:11,232 INFO L168 Benchmark]: RCFGBuilder took 168.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:25:11,232 INFO L168 Benchmark]: TraceAbstraction took 867.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:25:11,232 INFO L168 Benchmark]: Witness Printer took 36.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:25:11,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 128.07 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 168.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 867.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 102.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 37 SDslu, 146 SDs, 0 SdLazy, 128 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 4718 SizeOfPredicates, 4 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 20/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...